結果

問題 No.232 めぐるはめぐる (2)
コンテスト
ユーザー Haar
提出日時 2016-09-01 05:29:19
言語 Haskell
(9.10.1)
結果
WA  
実行時間 -
コード長 1,353 bytes
コンパイル時間 9,386 ms
コンパイル使用メモリ 176,328 KB
実行使用メモリ 8,064 KB
最終ジャッジ日時 2024-11-14 14:06:00
合計ジャッジ時間 11,837 ms
ジャッジサーバーID
（参考情報） 		judge1 / judge4
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 3
other AC * 6 WA * 14 RE * 2
権限があれば一括ダウンロードができます
コンパイルメッセージ
Loaded package environment from /home/judge/.ghc/x86_64-linux-9.8.2/environments/default
[1 of 2] Compiling Main             ( Main.hs, Main.o )

Main.hs:5:1: warning: [GHC-94817] [-Wtabs]
    Tab character found here, and in 99 further locations.
    Suggested fix: Please use spaces instead.
  |
5 |         [t,a,b] <- map (read::String->Int) . words <$> getLine
  | ^^^^^^^^
[2 of 2] Linking a.out

ソースコード

diff # 

import Control.Applicative

main :: IO()
main = do
	[t,a,b] <- map (read::String->Int) . words <$> getLine
	if check t a b
		then do
			putStrLn "YES"
			mapM_ putStrLn $ route t a b
		else putStrLn "NO"

check t a b
	| a > t || b > t = False
	| otherwise = True
sign x
	| x > 0 = 1
	| x < 0 = -1
	| otherwise = 0

route t a b
	| a == b = if t''-t' == 0 then replicate min' (diag a b) else ([dir a 0, dir 0 b] ++ replicate (min'-1) (diag a b)) ++ (take t'' (cycle [diag a b, diag (-a) (-b)]))
	| a /= b = replicate min' (diag a b) ++ route' (t-min') (a-min'*(sign a)) (b-min'*(sign b))
	where
		min' = minimum [abs a,abs b]
		diag x y
			| x > 0 && y > 0 = ">^"
			| x > 0 && y < 0 = ">v"
			| x < 0 && y > 0 = "<^"
			| x < 0 && y < 0 = "<v"
			| otherwise = ""
		dir x y
			| x > 0 = ">"
			| x < 0 = "<"
			| y > 0 = "^"
			| y < 0 = "v"
		t' = t - min'
		t'' = if t' `mod` 2 == 0 then t' else t' - 1
		

route' t a b = if t'-t'' == 0 then replicate cnt (dir a b) else ((cor a b) ++ replicate (cnt-1) (dir a b)) ++ (take t'' (cycle ["<",">"]))
	where
		dir x y
			| x > 0 = ">"
			| x < 0 = "<"
			| y > 0 = "^"
			| y < 0 = "v"
			| otherwise = ""
		cor x y
			| x > 0 = [">^","v"]
			| x < 0 = ["<v","^"]
			| y > 0 = [">^","<"]
			| y < 0 = ["<v",">"]
			| otherwise = []
		cnt = a + b
		t' = t - cnt
		t'' = if t' `mod` 2 == 0 then t' else t' - 1
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